German Type Mittel U submarine

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|Ship image=SM U-86.png

|Ship caption=SM U-86, a Mittel U submarine

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|Builders=*AG Weser, Bremen

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|Class before=Type U 66

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|Total ships completed=46

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|Ship displacement=*{{convert|808|t|LT}}(surfaced)

  • {{convert|946|t|LT}} (submerged)
  • {{convert|1160|t|LT}} (total)

|Ship length=*{{convert|70.60|m|ftin|abbr=on}} (overall)

  • {{convert|55.55|m|ftin|abbr=on}} (pressure hull)

|Ship beam=*{{convert|6.30|m|ftin|abbr=on}} (overall)

  • {{convert|4.15|m|ftin|abbr=on}} (pressure hull)

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|Ship draught={{convert|4.02|m|ftin|abbr=on}}

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|Ship propulsion=*{{convert|2x2400|hp|abbr=on}} (surfaced)

  • {{convert|2x1200|hp|abbr=on}} (submerged)

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|Ship speed=*{{convert|16.8|kn}} (surfaced)

  • {{convert|9.1|kn}} (submerged)

|Ship range={{convert|11,220|mi|nmi km|abbr=on}} (surfaced) {{convert|56|mi|nmi km|abbr=on}} (submerged)

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|Ship complement=39 men

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|Ship armament=*16 torpedoes (4/2 in bow/stern tubes)

  • 105mm deck gun with 220 rounds
  • 88mm deck gun

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Mittel U was a class of U-boats built during World War I by the Kaiserliche Marine.

Mittel U U-boats carried 16 torpedoes and had various arrangements of deck guns. Some had only one 88mm gun while others had a single 105mm gun - but most had both originally. In 1917 some of the boats were refitted with a single 105mm gun.

They carried a crew of 39 and had excellent seagoing abilities with a cruising range of around 11,220 miles. Many arrangements from the Mittel U were also seen on the World War II Type IX U-boats when their design work took place 20 years later.

Between 1915 and 1919 46 were built, amongst them U-88 with Walther Schwieger as commander and U-103 with Claus Rücker.

List of Type Mittel U submarines